Iviachsne for putting out and cleaning leather



(No Model.) 2 Sheets-Sheet 1.

J. HODSKINSON.

MACHINE FOR PUTTING OUT AND CLEANING LEATHER.

No. 311,582. Patented Feb. 8.1885.

N. rz'rtns. Pholo-Lllhographer. Wmhmgien, n. c.

(No Model.) 2 Sheets-Sheet 2.

J. HODSKINSON.

MACHINE FOR PUTTING OUT AND CLEANING LEATHER. No. 811,582. Patentedf'eb. 8,1885.

N. warms. Phole-Lilhagmpllen Washinglon. u c.

lhvrrnn diaries ATENT @rrrcs- JABEZ IIODSKINSON, OF SALEM, ASSIGNOR OF ONE-HALF TO DAVID KNOX, OF LYNN, MASSACHUSETTS.

MACHENE FOR PUTTING OUT ANEl CLEANING LEATHER.

SPECIFICATION forming part of Letters Patent No. 311,582, dated February 3, 1885.

Application filed November 3, 1384.

To ttZZ whom it may concern.-

Be it known that I, JABEZ HODSKINSON, of Salem, in the county of Essex and State of Massachusetts,have invented certain Improvements in Machines for Putting Out and Cleaning Skins, Leather, &-c., ot which the following is a specification.

This invention relates to machines for removing wrinkles from leather, tanned skins, &e., and at the same time cleaning theirsurfaces by the scraping action of a rotating roll having spiral blades or flanges arranged to bear on a skin supported on a rotating cylinder or bed.

The invention has for its object, first, to provide certain improvements in the construction of the supporting-cylinder, whereby a skin can be readily and convenient-1y applied to and re moved therefrom; secondly, to enable the cylinder to be automatically disconnected from its motor when it is separated fro m the scraping-roll; and, thirdly, to provide means for counterbalancing the weight of the support ing-cylinder, so that it can be easily moved toward and from the scraping-roll by a treadle mechanism.

To these ends the invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a front elevation of my improved machine,

and Fig. 2 represents an end elevation of the same.

The same letters of reference indicate the same parts in both the figures.

In the drawings, a a represent end stand ards connected by cross-bars b b, said standards and cross-bars constituting the frame of the machine.

0 represents the scraping-roll, which is journaled in fixed bearings in the standards a a, and is provided with spiral scraping-blades c c, the pitch of said blades from the center to one end being opposite to that from the cen' ter to the other end, as shown in Fig. 1, so that the blades will work or stretch a skin or piece of leather outwardly in opposite directions from its center, and thus deprive it of wrinkles.

(No model.)

(I represents the cylinder which supports and moves the skin or other article that is being acted on by the scraping-roll. Said cylinder is journaled in boxes or bearings e c,

which are vertically movable in slots in the standards a, to enable the supporting-cylinder to be moved toward and from the scrapingroll. Said boxes are supported by the shorter arms of levers f f, which are pivoted at g g to ears on the standards, and have longer arms extending downwardly, and connected by links it h to a bar supported by a treadle, t', which is pivoted to one of the cross-bars b. Springs j j normally raise the treadle z, and

thus by means of the links it h draw inwardly the longer arms of the levers, thus depressing the shorter arms of said levers and permitting the boxes 6 c and the cylinder (1 to drop slightly, thus separating the cylinder from the scraping-roll. treadle, the links 7i 71v act as members of a toggle-joint, pressing outwardly the longer arms of the levers ff and raising the shorter arms thereof, thus pressing the boxes 6 and cylinder (7. upwardly, and causing the cylinder to 75 press a skin or other article thereon with any desired degree of force against the scraping roll.

The described mechanism for pressing the cylinder toward the scraping-roll is not of my invention, but is described and claimed in the application of David Knox for patent for leather-rolling machine filed with this application. The arbor of the supporting-cylinder is provided with a worm-wheel, m, with which meshes a worm, a, on an arbor, 0, which is journaled in a bearing-block, p, and is provided with a bevel-pinion, q, meshing with a bevel-gear, r, on the arbor t of the scrapingroll. driving-belt, s, or otherwise, and imparts motion through the arbor t to the cylinder (1, the direction in which the roll and cylinder rotate being shown by arrows in Fig. 2. The

bearing-block p is pivoted to one of the stand- 5 ards a by a bolt, a, so that the arbor 0 is capable of swinging to permit the worm n to be moved out of and into engagement with the wheel m, thus enabling the rotation of the cylinder to be suspended by separating the rec When the operator depresses the 70 Said roll is continuously rotated by a 0 worm n from the wheel in. I prefer to employ devices whereby the depression of the cylinder (1 is caused to disconnect the worm a front the wheel m. To this end a bell-cranklever, u, is pivoted at e to an arm, 10, on one of the end standards a, and is connected at one end by a link, 3 with a sleeve, z, on the arbor 0, and is pivoted at its other end to an arm, a, attached to one of the boxes 6, in which the supporting-cylinder is journaled. lV-hen the box 6 falls, the bell-crank lever is turned on its pivot so that it forces the arbor 0 outwardly, and thus disconnects the worm n from the wheel at. WVh en the box 6 rises, the bell-crank leveruis turned in the opposite directiomand draws the arbor o inwardly until the worm it engages with the wheel m. In case this auto 'matic action is not desired, the bell-crank lever may be removed and a hand-lever, 1), substituted for it, said hand-lever being pivoted ate to an arm, (2, on one of the standards a,and at e to the sleeve 2 on the arbor 0, and operating when turned on its supporting-pivot to throw the arbor out or in, as the case may be. The periphery of the cylinder (Z is not continuous, butis interrupted to form an opening, to one edge or side of which is hinged atf a plate or fastening-flap, g, the free edge of which is adapted to swing outwardly against the opposite edge of the opening in the cylinder, the plate being of such width that it cannot swing outside ofthe periphery of the cylinder,

but will abut against the corresponding edge of the opening in the cylinder and grasp the end of a skin or other like article interposed between said edges, as shown in Fig. A handle, it, secured to the plate 9 at its hinged edge or other convenient point, enables the plate to be turned to release or grasp the skin. When the end of a skin has been inserted in the opening of the cylinder and grasped by the plate, the tension exerted on the skin by the scraping-roll when the machine is in operation holds the plate in engagement with the skin.

The operation is as follows: The skin is first secured to the cylinder at one end, as above described, its other end being loose. The cylinder is then pressed upwardly by the treadle and accompanying mechanism, and is at the same time set in motion, thus pressing the skin against the scraping-roll and moving it forward in the direction indicated by the arrow, Fig. 2. The blades of the scrapingroll stretch the skin or leather, eradicate wrinkles and creases from the skin, and scrape off the dirt and foreign matter from its surface. 'When the cylinder-has rotated far enough to present the entire skin to the scrapingroll, the operator releases the treadle, thus allowing the cylinder to fall and stopping its rotation. The arbor of the cylinder has a pulley,

'2', from which a weight, j, is suspended by a cord, I The rotation of the cylinder while the machine isin operation winds up the cord and raises the weight. When the operation of the machine is arrested by the depression of the cylinder and the disconnection thereof from the mechanism which rotates it, the weight j descends and rotates the cylinder backwardly to the starting-point, thus bringing the entire skin to the front of the machine, and putting the cylinder in position to receive another skin and present it to the scrapingroll. It will be seen, therefore, that the operation of the machine is to a considerable extent automatic, the operator having only to secure the skin to the cylinder and depress the treadle to effect the described operation on the skin, while the release of the treadle restores the cylinder to its starting position. The cylinder cl is partially counterbalanced by a lever, m, so that it can be easily raised by the treadle, said lever being pivoted at n to one of the standards a, and pressing upwardly to its inner end against the arbor of the cylinder, its outer end being provided with a weight, 0. The boxes 0 e are made in two sections, 2 3, the arbor of the cylinder beingjournaled in the sections 2, while the sections 3are located below the sections 2 and bear directly on the levers f. The sections are connected by ad justable screws 4 4, swiveled in the sections 2, and having nuts 5 5, which bear on the sections 3. By turning said screws the sections 2 may be raised or lowered to regulate the normal position of the roll when it is depressed or separated from the scraping-roll. ble, the flap or plate 9 may be turned automatically to release the skin when the cylinder is being rotated backwardly, and to grasp the skin at the commencement of the forward rotation of the cylinder. To this end one of the standards (6 is provided on its inner side with a stud or catch, 6, adapted to slide vertically in guides on said standard, and supported by a spiral spring, as shown in Fig. 2. \Vhen the cylinder is rotated backwardly, the handle it of the plate or flap gstrikes the stud 6, and is caused thereby to turn the flap inwardly and release the skin, the stud yielding after the fiap'is turned to permit the handle it to pass by it. Then the cylinder commences its forward rotation, the handle h again strikes the stud 6 and is turned in the opposite direction, so as to swing the flap outwardly and cause it to grasp the end of the skin inserted in the opening of the cylinder, the stud again yielding after this and permitting the handle to pass over it.

I do not confine myself to mounting the scraping-roll in the fixed bearings and the supportingcylinder in movable bearings, for, if desired, the conditions may be reversed, the scraping-roll being in movable and the cylinder in fixed bearings.

The supportingcylinder may be covered If desira- IOO IIO

with a cushion of rubber, leather, or other suitable material.

I am aware that in a machine for pulling wool a cylinder having outwardly-swinging hinged sections in its periphery adapted to close inwardly and grasp a skin is not new. I claim 1. The supporting-cylinder having its periphery interrupted to form an opening, and provided with a plate or fiap hinged atone edge of said opening, so as to swing into but not outside of the periphery of the cylinder, the swinging edge of the plate cooperating with the corresponding edge of said opening in grasping a skin, and being held in engagement with the skin by the tension exerted on the latter, as set forth.

2. The combination ofthe driven scrapingroll mounted in fixed bearings, the supporting-cylinder mounted in movable bearings, and mechanism, substantially as described, whereby power is imparted from the scrapingroll to the supporting-oylinder, and mechanism, substantially as described, whereby the cylinder may be disconnected from the meclr anism that rotates it, as set forth.

3. The combination of the driven scrapingroll mounted in fixed bearings, the supporting-cylinder mounted in movable bearings, the swinging arbor 0, geared at one end to the arbor of the scraping-roll, and having a worm formed to mesh with a worm-wheel on the arbor of the cylinder, and means, as described, for swinging said arbor 0 toward or from said wornrwheel, as set forth.

4. The combination of the driven scrapingroll mounted in fixed bearings, the supporting-cylinder mounted in movable bearings. the swinging arbor having the worm adapted to engage with a worm-wheel on the arbor of the cylinder, and the bell-crank lever connected at one end with a sleeve on the swinging arbor, and at the other end with one of the movable boxes of the cylinder, as set forth.

5. The combination, with the driven scraping-roll mounted in fixed bearings, of the supporting-cylinder mounted in movable bearings, mechanism, substantially as described, whereby the cylinder is rotated when it is pressed toward the scraping-roll, and released when it is moved away from the scraping-roll, and a weight and pulley on the arbor of the cylinder, whereby the cylinder is automatically restored to its starting position, as set forth.

6. The combination of the scraping-roll, the supporting-cylinder mounted in movable bearings and provided with mechanism, substantially as described, for pressing it toward the scraping'roll, and the weightedlever, whereby the cylinder is counterbalanced, as set forth.

7. The cylinder having the interrupted periphery and the hinged holding flap or plate provided with an arm or handle, combined with a yielding stud on the supporting frame, whereby the arm or handle is turned inwardly to release the skin when the cylinder is rotated backwardly, and outwardly to grasp the skin when the cylinder is rotated in the opposite direction, as set forth.

In testimony whereof I have signed my name to this specification,in the presence oftwo subscribing witnesses, this 24th day of October, 1884.

JABEZ HODSKINSON.

Witnesses:

O. F. BROWN, H. BROWN. 

